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WO2008156081A1 - Transmission device and transmission method - Google Patents

Transmission device and transmission method Download PDF

Info

Publication number
WO2008156081A1
WO2008156081A1 PCT/JP2008/061042 JP2008061042W WO2008156081A1 WO 2008156081 A1 WO2008156081 A1 WO 2008156081A1 JP 2008061042 W JP2008061042 W JP 2008061042W WO 2008156081 A1 WO2008156081 A1 WO 2008156081A1
Authority
WO
WIPO (PCT)
Prior art keywords
precoding
transmission
signal sequences
transmission antennas
different
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2008/061042
Other languages
French (fr)
Japanese (ja)
Other versions
WO2008156081A9 (en
Inventor
Hidekazu Taoka
Tetsushi Abe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN2008800204707A priority Critical patent/CN101682387B/en
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Priority to JP2009520484A priority patent/JP5094859B2/en
Priority to EP08777280.2A priority patent/EP2169846A4/en
Priority to MX2009012927A priority patent/MX2009012927A/en
Priority to RU2009149103/07A priority patent/RU2479927C2/en
Priority to KR1020097025968A priority patent/KR101414565B1/en
Priority to US12/664,830 priority patent/US8379749B2/en
Priority to BRPI0813328-0A2A priority patent/BRPI0813328A2/en
Publication of WO2008156081A1 publication Critical patent/WO2008156081A1/en
Anticipated expiration legal-status Critical
Publication of WO2008156081A9 publication Critical patent/WO2008156081A9/en
Priority to US13/738,701 priority patent/US8731102B2/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0617—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal for beam forming
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Radio Transmission System (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A transmission device includes: a plurality of transmission antennas; conversion means which prepares a plurality of signal sequences in accordance with a predetermined frequency bandwidth from at least one transmission stream associated with any one of the transmission antennas; precoding means which weights each of the signal sequences by a predetermined precoding vector selected from a codebook containing a plurality of precoding vectors; and means for converting the output signal from the precoding means into signals of the transmission antennas and transmitting the converted signals from the respective transmission antennas. In the precoding means, different precoding vectors are applied to different signal sequences and the correspondence between the different precoding vectors and the different signal sequences is decided by an open loop control not depending on a feedback from a reception device.
PCT/JP2008/061042 2007-06-19 2008-06-17 Transmission device and transmission method Ceased WO2008156081A1 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
BRPI0813328-0A2A BRPI0813328A2 (en) 2007-06-19 2008-06-17 TRANSMITTER AND TRANSMISSION METHOD
JP2009520484A JP5094859B2 (en) 2007-06-19 2008-06-17 Transmitting apparatus and transmitting method
EP08777280.2A EP2169846A4 (en) 2007-06-19 2008-06-17 TRANSMISSION DEVICE AND TRANSMISSION METHOD
MX2009012927A MX2009012927A (en) 2007-06-19 2008-06-17 Transmission device and transmission method.
RU2009149103/07A RU2479927C2 (en) 2007-06-19 2008-06-17 Transmitter and signal transmission method
CN2008800204707A CN101682387B (en) 2007-06-19 2008-06-17 Transmission device and transmission method
US12/664,830 US8379749B2 (en) 2007-06-19 2008-06-17 Transmitter and transmission method
KR1020097025968A KR101414565B1 (en) 2007-06-19 2008-06-17 Transmitting apparatus and transmission method
US13/738,701 US8731102B2 (en) 2007-06-19 2013-01-10 Transmitter and transmission method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007161943 2007-06-19
JP2007-161943 2007-06-19

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/664,830 A-371-Of-International US8379749B2 (en) 2007-06-19 2008-06-17 Transmitter and transmission method
US13/738,701 Continuation US8731102B2 (en) 2007-06-19 2013-01-10 Transmitter and transmission method

Publications (2)

Publication Number Publication Date
WO2008156081A1 true WO2008156081A1 (en) 2008-12-24
WO2008156081A9 WO2008156081A9 (en) 2010-04-08

Family

ID=40156240

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/061042 Ceased WO2008156081A1 (en) 2007-06-19 2008-06-17 Transmission device and transmission method

Country Status (9)

Country Link
US (2) US8379749B2 (en)
EP (2) EP2584713A3 (en)
JP (2) JP5094859B2 (en)
KR (1) KR101414565B1 (en)
CN (2) CN101682387B (en)
BR (2) BRPI0813328A2 (en)
MX (1) MX2009012927A (en)
RU (2) RU2479927C2 (en)
WO (1) WO2008156081A1 (en)

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